Food-particle size and selection by bivalve larvae in a temperate embayment

Raby, D.; Mingelbier, Marc; Dodson, Julian J.; Klein, Bert; Lagadeuc, Yvan; Legendre, Louis

doi:10.1007/s002270050057

Cited by 56 publications

(37 citation statements)

References 30 publications

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“…Larval food sources of Crassostrea spp. in the natural environment are multiple (types and particle sizes), and their consumption varies with larval stages: bacteria, phytoplankton, particulate and dissolved organic matter and protozoa (Douillet 1993, Raby et al 1997, Sommer et al 2000. At the beginning of August, warmer conditions (temperature > 25°C) could cause a shift in the regeneration of organic matter and in remineralization favoring fast growing diatoms (Collos et al 2003), most of which are Chaetoceros spp.…”

Section: Discussionmentioning

confidence: 99%

Recruitment of the Pacific oyster Crassostrea gigas in a shellfish-exploited Mediterranean lagoon: discovery, driving factors and a favorable environmental window

Lagarde¹,

D’Orbcastel²,

Ubertini³

et al. 2017

Mar. Ecol. Prog. Ser.

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Section: Discussionmentioning

confidence: 99%

Recruitment of the Pacific oyster Crassostrea gigas in a shellfish-exploited Mediterranean lagoon: discovery, driving factors and a favorable environmental window

Lagarde¹,

D’Orbcastel²,

Ubertini³

et al. 2017

Mar. Ecol. Prog. Ser.

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“…The natural diet of bivalve veliger larvae is thought to be nanoplankton (Baldwin 1995, Raby et al 1997, Sommer et al 2000. In laboratory experiments with Mytilus edulis larvae, the highest clearance rate was seen for food particles in the size range of 2.5 to 3.5 µm (Riisgård 1980, Sprung 1984a.…”

Section: Introductionmentioning

confidence: 99%

Particle retention efficiency of asari clam Ruditapes philippinarum larvae

Tezuka¹,

Ichisaki²,

Kanematsu³

et al. 2009

Aquat. Biol.

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Larval food abundance is one potential cause of recruitment variation in benthic invertebrates, including bivalves. Bivalve veliger larvae can clear particles <~10 µm. However, the particle retention efficiency (PRE) of bivalve larvae differs among species, so is necessary to determine larval food abundance in nature. We investigated the PRE of larvae of the asari clam Ruditapes philippinarum, which recently has greatly decreased in numbers in Japan. Artificially hatched larvae from the umbo to the full grown stage were exposed to natural food assemblages. Larval clearance rates were determined for particles in 32 size ranges from 0.8 to 18 µm. We observed significant clearance of particles in the ~1 to 8 µm size range, with the highest clearance rates being on 1.4 to 2.0 µm particles. Larval ingestion of the natural food assemblages ranged from 50 × 10 2 to 120 × 10 2 µm 3 ind., which is below the hatchery food ration, suggesting larval food limitation in nature.

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“…Previous studies have suggested the importance of picoplankton in the diet of bivalve larvae as well as bacteria and detritus (Baldwin and Newell 1991;Raby et al 1997;Sommer et al 2000). However, for this study, the contribution of picoplankton to the carbon ingested by the larvae is extremely small.…”

Section: Discussionmentioning

confidence: 70%